Browsing NTNU Open by Author "Garces, Alejandro"
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HVDC meshed multi-terminal networks for offshore wind farms: Dynamic model, load flow and equilibrium
Garces, Alejandro; Sanchez Acevedo, Santiago; Bergna-Diaz, Gilbert; Tedeschi, Elisabetta (Chapter, 2017)This paper presents sufficient conditions for the existence of an equilibrium point of multi-terminal HVDC (MT-HVDC) network for offshore applications. Newton's method is used both as a computational tool and as the basis ... -
Passivity-Based Control for Small Hydro-Power Generation with PMSG and VSC
Gil Gonzalez, Walter Julian; Garces, Alejandro; Fosso, Olav B (Peer reviewed; Journal article, 2020)This paper presents a passivity-based control method for a small hydro-power system that consists of a permanent magnet synchronous generator (PSMG) connected to the grid through a back-to-back converter. Nonlinear models ... -
Passivity-Based Control of Power Systems Considering Hydro-Turbine with Surge Tank
Gil Gonzales, Walter Julian; Garces, Alejandro; Fosso, Olav B; Escobar, Andres (Journal article; Peer reviewed, 2019)This paper proposes an interconnection and damping assignment passivity-based control (IDA-PBC) for multimachine power systems including hydro-turbine governing systems (HTGS) with surge tank. The main objective is to ... -
Short-Term Hydrothermal Scheduling with Solar and Wind Farms Using Second-Order Cone Optimization with Chance-Box Constraints
Castano, Juan Camilo; Garces, Alejandro; Fosso, Olav B (Peer reviewed; Journal article, 2021)Short-Term Hydrothermal Scheduling (STHS) is a classic problem in power system operation where the aim is to decide the dispatch of both thermal and hydroelectric units. This problem is complex due to its non-linear ...